mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-30 04:40:14 +00:00
37 lines
No EOL
1.2 KiB
C#
37 lines
No EOL
1.2 KiB
C#
using System;
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using System.IO;
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using Mono.Cecil;
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using Mono.Cecil.Cil;
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using CPU = Indy.IL2CPU.Assembler;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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namespace Indy.IL2CPU.IL.X86 {
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[OpCode(Code.Ldelema, true)]
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public class Ldelema: Op {
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private int mElementSize;
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public Ldelema(Instruction aInstruction, MethodInformation aMethodInfo)
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: base(aInstruction, aMethodInfo) {
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TypeReference xTypeRef = aInstruction.Operand as TypeReference;
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TypeSpecification xTypeSpec = xTypeRef as TypeSpecification;
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if(xTypeSpec == null) {
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mElementSize = Engine.GetFieldStorageSize(xTypeRef);
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} else {
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mElementSize = 4;
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}
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}
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public static void Assemble(CPU.Assembler aAssembler, int aElementSize) {
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new CPUx86.Pop(CPUx86.Registers.EAX);
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new CPUx86.Move(CPUx86.Registers.EDX, "0" + aElementSize.ToString("X") + "h");
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new CPUx86.Multiply(CPUx86.Registers.EDX);
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new CPUx86.Add(CPUx86.Registers.EAX, "0" + (ObjectImpl.FieldDataOffset + 4).ToString("X") + "h");
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new CPUx86.Pop(CPUx86.Registers.EDX);
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new CPUx86.Add(CPUx86.Registers.EDX, CPUx86.Registers.EAX);
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new CPUx86.Pushd(CPUx86.Registers.EDX);
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}
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public override void DoAssemble() {
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Assemble(Assembler, mElementSize);
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}
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}
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} |